This first post of our Aper­tures in the Wall blog high­lights the wide range of our sub­ject, in time and ge­og­ra­phy, by span­ning more than 10,000 years of hu­man his­to­ry and cov­er­ing both worlds, the Old and the New. We give two piv­otal ex­am­ples: one from pre­his­to­ry, Çatal Hüyük, and the oth­er […]